{"id":95404,"date":"2024-10-20T00:46:18","date_gmt":"2024-10-19T16:46:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95404\/"},"modified":"2024-10-20T00:46:19","modified_gmt":"2024-10-19T16:46:19","slug":"oracle%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86%e4%b8%ad%e7%9a%84%e5%85%a9%e5%80%8b%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95404\/","title":{"rendered":"Oracle\u6578\u64da\u8655\u7406\u4e2d\u7684\u5169\u500b\u64cd\u4f5c\u65b9\u6848"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86%e4%b8%ad%e7%9a%84%e5%85%a9%e5%80%8b%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88-BxNlYQRUvV\">Oracle\u6578\u64da\u8655\u7406\u4e2d\u7684\u5169\u500b\u64cd\u4f5c\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u5c0d\u65bc\u4f01\u696d\u7684\u6210\u529f\u81f3\u95dc\u91cd\u8981\u3002Oracle\u4f5c\u70ba\u4e00\u500b\u9818\u5148\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u8655\u7406\u65b9\u6848\uff0c\u4ee5\u6eff\u8db3\u4e0d\u540c\u696d\u52d9\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0eOracle\u6578\u64da\u8655\u7406\u4e2d\u7684\u5169\u500b\u4e3b\u8981\u64cd\u4f5c\u65b9\u6848\uff1a\u6279\u91cf\u8655\u7406\u548c\u5373\u6642\u8655\u7406\u3002<\/p>\n<h2 id=\"%e4%b8%80%e3%80%81%e6%89%b9%e9%87%8f%e8%99%95%e7%90%86-BxNlYQRUvV\">\u4e00\u3001\u6279\u91cf\u8655\u7406<\/h2>\n<p>\u6279\u91cf\u8655\u7406\u662f\u4e00\u7a2e\u5c07\u5927\u91cf\u6578\u64da\u96c6\u4e2d\u8655\u7406\u7684\u65b9\u5f0f\uff0c\u901a\u5e38\u5728\u975e\u9ad8\u5cf0\u6642\u6bb5\u9032\u884c\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u80fd\u5920\u6709\u6548\u5229\u7528\u7cfb\u7d71\u8cc7\u6e90\uff0c\u4e26\u4e14\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u6027\u80fd\u8868\u73fe\u512a\u7570\u3002<\/p>\n<h3 id=\"1-1-%e6%89%b9%e9%87%8f%e8%99%95%e7%90%86%e7%9a%84%e7%89%b9%e9%bb%9e-BxNlYQRUvV\">1.1 \u6279\u91cf\u8655\u7406\u7684\u7279\u9ede<\/h3>\n<ul>\n<li><strong>\u9ad8\u6548\u6027\uff1a<\/strong>\u6279\u91cf\u8655\u7406\u80fd\u5920\u5728\u4e00\u6b21\u64cd\u4f5c\u4e2d\u8655\u7406\u5927\u91cf\u6578\u64da\uff0c\u6e1b\u5c11\u4e86\u591a\u6b21\u4ea4\u4e92\u7684\u958b\u92b7\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u5229\u7528\uff1a<\/strong>\u53ef\u4ee5\u5728\u7cfb\u7d71\u8ca0\u8f09\u8f03\u4f4e\u7684\u6642\u5019\u9032\u884c\uff0c\u5f9e\u800c\u4e0d\u5f71\u97ff\u65e5\u5e38\u696d\u52d9\u904b\u884c\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u6279\u91cf\u8655\u7406\u4e2d\uff0c\u932f\u8aa4\u901a\u5e38\u6703\u88ab\u96c6\u4e2d\u8655\u7406\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6574\u9ad4\u7684\u6578\u64da\u6e96\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h3 id=\"1-2-%e6%89%b9%e9%87%8f%e8%99%95%e7%90%86%e7%9a%84%e5%af%a6%e7%8f%be-BxNlYQRUvV\">1.2 \u6279\u91cf\u8655\u7406\u7684\u5be6\u73fe<\/h3>\n<p>\u5728Oracle\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528PL\/SQL\u4f86\u5be6\u73fe\u6279\u91cf\u8655\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528PL\/SQL\u9032\u884c\u6279\u91cf\u63d2\u5165\u64cd\u4f5c\uff1a<\/p>\n<pre><code>\nDECLARE\n    TYPE emp_rec IS RECORD (\n        emp_id NUMBER,\n        emp_name VARCHAR2(100)\n    );\n    TYPE emp_tab IS TABLE OF emp_rec;\n    v_emp_data emp_tab := emp_tab();\nBEGIN\n    -- \u5047\u8a2d\u6211\u5011\u67091000\u689d\u6578\u64da\u9700\u8981\u63d2\u5165\n    FOR i IN 1..1000 LOOP\n        v_emp_data.EXTEND;\n        v_emp_data(i).emp_id := i;\n        v_emp_data(i).emp_name := 'Employee ' || i;\n    END LOOP;\n\n    FORALL i IN v_emp_data.FIRST..v_emp_data.LAST\n        INSERT INTO employees (id, name) VALUES (v_emp_data(i).emp_id, v_emp_data(i).emp_name);\n    \n    COMMIT;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e4%ba%8c%e3%80%81%e5%8d%b3%e6%99%82%e8%99%95%e7%90%86-BxNlYQRUvV\">\u4e8c\u3001\u5373\u6642\u8655\u7406<\/h2>\n<p>\u5373\u6642\u8655\u7406\u662f\u6307\u5728\u6578\u64da\u751f\u6210\u7684\u540c\u6642\u9032\u884c\u8655\u7406\uff0c\u901a\u5e38\u7528\u65bc\u9700\u8981\u5feb\u901f\u53cd\u61c9\u7684\u696d\u52d9\u5834\u666f\uff0c\u5982\u91d1\u878d\u4ea4\u6613\u3001\u5728\u7dda\u8a02\u55ae\u7b49\u3002\u9019\u7a2e\u65b9\u5f0f\u7684\u4e3b\u8981\u7279\u9ede\u662f\u80fd\u5920\u63d0\u4f9b\u5373\u6642\u7684\u6578\u64da\u53cd\u994b\u3002<\/p>\n<h3 id=\"2-1-%e5%8d%b3%e6%99%82%e8%99%95%e7%90%86%e7%9a%84%e7%89%b9%e9%bb%9e-BxNlYQRUvV\">2.1 \u5373\u6642\u8655\u7406\u7684\u7279\u9ede<\/h3>\n<ul>\n<li><strong>\u5373\u6642\u6027\uff1a<\/strong>\u6578\u64da\u5728\u751f\u6210\u7684\u77ac\u9593\u5c31\u88ab\u8655\u7406\uff0c\u80fd\u5920\u5feb\u901f\u97ff\u61c9\u7528\u6236\u9700\u6c42\u3002<\/li>\n<li><strong>\u4ea4\u4e92\u6027\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u5373\u6642\u7372\u5f97\u53cd\u994b\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u80fd\u5920\u6839\u64da\u5be6\u6642\u6578\u64da\u9032\u884c\u52d5\u614b\u8abf\u6574\uff0c\u9069\u61c9\u5e02\u5834\u8b8a\u5316\u3002<\/li>\n<\/ul>\n<h3 id=\"2-2-%e5%8d%b3%e6%99%82%e8%99%95%e7%90%86%e7%9a%84%e5%af%a6%e7%8f%be-BxNlYQRUvV\">2.2 \u5373\u6642\u8655\u7406\u7684\u5be6\u73fe<\/h3>\n<p>\u5728Oracle\u4e2d\uff0c\u5373\u6642\u8655\u7406\u53ef\u4ee5\u901a\u904e\u89f8\u767c\u5668\u548c\u6d41\u8655\u7406\u6280\u8853\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u89f8\u767c\u5668\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nCREATE OR REPLACE TRIGGER update_employee_salary\nAFTER UPDATE ON employees\nFOR EACH ROW\nBEGIN\n    IF :NEW.salary &gt; :OLD.salary THEN\n        INSERT INTO salary_changes (emp_id, old_salary, new_salary, change_date)\n        VALUES (:NEW.id, :OLD.salary, :NEW.salary, SYSDATE);\n    END IF;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BxNlYQRUvV\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u6578\u64da\u8655\u7406\u4e2d\uff0c\u6279\u91cf\u8655\u7406\u548c\u5373\u6642\u8655\u7406\u5404\u6709\u5176\u512a\u52e2\u548c\u9069\u7528\u5834\u666f\u3002\u6279\u91cf\u8655\u7406\u9069\u5408\u65bc\u9700\u8981\u9ad8\u6548\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u60c5\u6cc1\uff0c\u800c\u5373\u6642\u8655\u7406\u5247\u66f4\u9069\u5408\u9700\u8981\u5feb\u901f\u53cd\u61c9\u7684\u696d\u52d9\u9700\u6c42\u3002\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u8655\u7406\u65b9\u6848\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u7684\u696d\u52d9\u6548\u7387\u548c\u6578\u64da\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c<em><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/em>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u6578\u64da\u8655\u7406\u4e2d\u7684\u5169\u500b\u64cd\u4f5c\u65b9\u6848\uff0c\u4e86\u89e3\u5176\u512a\u7f3a\u9ede\u53ca\u9069\u7528\u5834\u666f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-95404","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=95404"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95404\/revisions"}],"predecessor-version":[{"id":95405,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95404\/revisions\/95405"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}